(E,E,E,E,E,E,E)-5,9,13,17,21,25,29-heptamethyl-31-[(tetrahydro-2H-pyran-2-yl)oxy]hentriaconta-5,9,13,17,21,25,29-heptaenal is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.
The CAS Registry Mumber 229305-87-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,2,9,3,0 and 5 respectively; the second part has 2 digits, 8 and 7 respectively. Calculate Digit Verification of CAS Registry Number 229305-87: (8*2)+(7*2)+(6*9)+(5*3)+(4*0)+(3*5)+(2*8)+(1*7)=137 137 % 10 = 7 So 229305-87-7 is a valid CAS Registry Number.
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